The patch titled
Subject: mm-fix-vm-scalability-regression-in-cgroup-aware-workingset-code-fix
has been added to the -mm tree. Its filename is
mm-fix-vm-scalability-regression-in-cgroup-aware-workingset-code-fix.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/mm-fix-vm-scalability-regression-in-cgroup-aware-workingset-code-fix.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/mm-fix-vm-scalability-regression-in-cgroup-aware-workingset-code-fix.patch
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------------------------------------------------------
From: Johannes Weiner <hannes@xxxxxxxxxxx>
Subject: mm-fix-vm-scalability-regression-in-cgroup-aware-workingset-code-fix
Link: http://lkml.kernel.org/r/20160707194024.GA26580@xxxxxxxxxxx
Signed-off-by: Johannes Weiner <hannes@xxxxxxxxxxx>
Cc: Michal Hocko <mhocko@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
include/linux/mm.h | 2 ++
1 file changed, 2 insertions(+)
diff -puN include/linux/mm.h~mm-fix-vm-scalability-regression-in-cgroup-aware-workingset-code-fix include/linux/mm.h
--- a/include/linux/mm.h~mm-fix-vm-scalability-regression-in-cgroup-aware-workingset-code-fix
+++ a/include/linux/mm.h
@@ -975,6 +975,7 @@ static inline struct mem_cgroup *page_me
}
static inline struct mem_cgroup *page_memcg_rcu(struct page *page)
{
+ WARN_ON_ONCE(!rcu_read_lock_held());
return READ_ONCE(page->mem_cgroup);
}
#else
@@ -984,6 +985,7 @@ static inline struct mem_cgroup *page_me
}
static inline struct mem_cgroup *page_memcg_rcu(struct page *page)
{
+ WARN_ON_ONCE(!rcu_read_lock_held());
return NULL;
}
#endif
_
Patches currently in -mm which might be from hannes@xxxxxxxxxxx are
cgroup-fix-idr-leak-for-the-first-cgroup-root.patch
cgroup-remove-unnecessary-0-check-from-css_from_id.patch
mm-memcontrol-fix-cgroup-creation-failure-after-many-small-jobs.patch
mm-memcontrol-fix-cgroup-creation-failure-after-many-small-jobs-fix.patch
mm-fix-vm-scalability-regression-in-cgroup-aware-workingset-code.patch
mm-fix-vm-scalability-regression-in-cgroup-aware-workingset-code-fix.patch
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